Standard Deviation — తెలుగులో
Data: 2,4,4,4,5,5,7,9: SD=2.
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Data: 2,4,4,4,5,5,7,9: SD=2.
SD: data spread కొలత. Risk analysis కు ముఖ్యం.
తరచుగా అడిగే ప్రశ్నలు
High SD?
More variability/risk.
Population vs sample?
Sample: n-1. Population: n.
Finance?
Portfolio risk కొలత.
Normal distribution?
68% within 1 SD.
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